5월 종시

한번 따라해 볼려고 했더니
PrintWriter pw = new PrintWriter(new OutputStreamWriter(httpURLCon.getOutputStream(), "EUC-KR"));
이 부분에서 에러가 납니다.
IOException 에러 부분으로 바로 넘어가는데...
뭐가 잘 못 된건지 모르겠습니다.

package com.google.android.test_httpPost4;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;

import org.apache.http.client.ClientProtocolException;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.util.TypedValue;
import android.widget.TextView;

public class test_httpPost4 extends Activity {

private ProgressDialog pDialog;
private Dialog info_Dialog;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

final TextView tv = (TextView)findViewById(R.id.text1);

try{
URL url = new URL("http://www.koreapost.go.kr/servlet/kpp.post.postInfo");
HttpURLConnection httpURLCon = (HttpURLConnection)url.openConnection();

httpURLCon.setDefaultUseCaches(false);
httpURLCon.setDoInput(true);
httpURLCon.setDoOutput(true);
httpURLCon.setRequestMethod("POST");
httpURLCon.setRequestProperty("content-type", "application/x-www-form-urlencoded");


StringBuffer sb = new StringBuffer();

String searchkeyword = "구름";
sb.append("sc_value").append("=").append(searchkeyword).append("&");
sb.append("sc_displayflag").append("=").append("true").append("&");
sb.append("sc_type").append("=").append("KOREAN").append("&");
sb.append("sc_init").append("=").append("1").append("&");
sb.append("sc_mode").append("=").append("LIST").append("&");

pDialog=ProgressDialog.show(this, "", "reading...");

PrintWriter pw = new PrintWriter(new OutputStreamWriter(httpURLCon.getOutputStream(), "EUC-KR"));

pw.write(sb.toString());

pw.flush();

BufferedReader bf = new BufferedReader(new InputStreamReader(httpURLCon.getInputStream(), "EUC-KR"));
StringBuilder buff = new StringBuilder();
String line;

while((line = bf.readLine()) != null){
buff.append(line);
}

} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}